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2-6

2.3. Functional System Diagram

2.3.1. Scanner Unit

SLOT ANTENNA

MOTOR

B101

SAFETY SWITCH

S101

MAG

V101

PULSE

TRANS

SWITCHING

CIRCUIT

PC201

GENERATOR

AVR

PC1001

㱂

FILTER

DUMMY

LOAD

DC+24V

Serial Com, BP, BZ, VD, TRIG

NKE-2254 Scanner Unit

POWER
SUPPLY

CIRCUIT

MOTOR CONTROL

POWER

PC1501

Rotation Control

Speed control

Status

DC+24V

Tx Trigger/Pulse Width

DC+24V

ENCODER

ROTARY

JOINT

INTERFACE CIRCUIT

PC1101

RF AMP

IF AMP

VIDEO

AMP

RECEIVER

Receiver
Bandwidth
Control

Tune Control

DIODE

LIMITER

Figure 2.2 Functional System Diagram of NKE-2254 Scanner Unit

Содержание JMA-5212-4

Страница 1: ...MARINE RADAR MARINE RADAR EQUIPMENT EQUIPMENT FIELD SERVICE FIELD SERVICE MANUAL MANUAL JMA 5212 4 6 JMA 5212 4 6 JMA 5222 7 9 JMA 5222 7 9 JMA 5212 4HS 6HS JMA 5212 4HS 6HS...

Страница 2: ......

Страница 3: ...System 2 9 2 4 Input Output Specifications 2 12 2 4 1 SCANNER J2 2 12 2 4 2 GPS J3 2 13 2 4 3 GYRO COMPASS J5 2 13 2 4 4 AIS NMEA J6 2 14 2 5 DIP SW Jumper Setting 2 15 2 5 1 Power Circuit CBD 1702A...

Страница 4: ...54 4 15 4 1 11 Magnetron fan replacement NKE 2254 4 17 4 1 12 Modulator fan replacement NKE 2254 4 18 4 1 13 NKE 2103 scanner unit parts replacement 4 21 4 1 14 Magnetron Replacement for the NKE 2103...

Страница 5: ...Check Keyboard Test 6 4 6 1 4 Performance Monitor MON Display 6 5 6 1 5 System Alarm Log Display Alarm List Log 6 5 6 1 6 System Information Display System INFO 6 6 6 2 Error Message Lists 6 7 6 2 1 E...

Страница 6: ...2 Overall System Diagram of the Radar JMA 5212 4 6 4HS 6HS 7 12 7 3 Inter Unit Connection Diagram 7 13 7 3 1 Inter Unit Connection Diagram of the JMA 5222 7 9 7 13 7 3 2 Inter Unit Connection Diagram...

Страница 7: ...Chapter 1 Equipment Overview...

Страница 8: ......

Страница 9: ...rail display function target tracking function 1 and AIS information display function 1 1 The function is optional for radar equipment not an IMO radar which is designed for fishing boats 1 2 Scanner...

Страница 10: ...ipal Functions This radar equipment satisfies the performance requirements defined in the IMO standard MSC 192 79 and has the following functions Sensitivity adjustment and sea clutter and rain snow c...

Страница 11: ...Chapter 2 Equipment Overview...

Страница 12: ......

Страница 13: ...T ANTENNA 25kW X 24rpm CAT 2 JMA 5222 9 9 FT SLOT ANTENNA 25kW X 24rpm CAT 2 Type of transmitted radio wave P0N for all the models Non IMO compliance MODEL NUMBER SCANNER TRANSMITTED OUTPUT POWER BAND...

Страница 14: ...2254 7 NJU 85 NCD 4380 DC24V JMA 5222 9 NKE 2254 9 NJU 85 NCD 4380 DC24V Non IMO compliance MODEL NUMBER SCANNER PERFORMANCE MONITOR UNIT DISPLAY SYSTEM SHIP S MAINS JMA 5212 4 NKE 2103 4 NJU 85 NCD...

Страница 15: ...neck heater and that a deicing mechanism cannot be installed in the NKE 2103 A scanner unit and display system are indicated on the nameplate of the equipment as follows SCANNER UNIT DISPLAY UNIT The...

Страница 16: ...elay 5V AVR 3 3V Poly sw Poly sw Filter Filter Motor Motor Control AVR System Power Supply Scanner Unit NKE 2103 2254 NSK UNIT NCT 4106A option Power SW Keyboard Unit NCE 7699A 15 inch LCD NWZ 164 To...

Страница 17: ...with the constant in the power circuit CBD 1702A The P 12V power supply is active even when the power switch on the operation unit is turned off This power supply is used with circuits such as the co...

Страница 18: ...MMY LOAD DC 24V Serial Com BP BZ VD TRIG NKE 2254 Scanner Unit POWER SUPPLY CIRCUIT MOTOR CONTROL POWER PC1501 Rotation Control Speed control Status DC 24V Tx Trigger Pulse Width DC 24V ENCODER ROTARY...

Страница 19: ...lator switching circuit After high voltage switching for the modulator the high voltage pulse is further boosted by the pulse transformer and applied to the magnetron for obtaining pulse modulated mic...

Страница 20: ...log compressed signal The antenna rotation signal is an incremental signal and 2048 rotation pulses and reference bearing pulses per cycle are used When a specified time has passed during the stoppin...

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